太平洋悬浮体特征及近底雾状层(雾浊层)探讨

杨作升; 李云海

太平洋悬浮体特征及近底雾状层(雾浊层)探讨

中国海洋大学海洋地球科学学院, 山东青岛 266003

基金项目: 中国大洋矿产资源研究开发协会环境研究与评价项目资助(DY105-02-07)

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出版历程
- 收稿日期: 2006-01-04
- 修回日期: 2006-03-03

Characteristics of suspended particles in the Pacific Ocean and discussion about near-bottom marine nepheloid layers

College of Marine Geoscience, Ocean University of China, Qingdao 266003, China

摘要

摘要: 2005年在太平洋12个测站分层采集了悬浮体水样及连续的水体温度、盐度、深度等数据.利用水体悬浮体含量在垂向上的分布特征初步分析了大洋雾状层的特点,并讨论了水体中悬浮体颗粒物质的来源,对不同海洋环境中悬浮体分布进行了对比,发现大洋水体中悬浮体含量总体很小,一般不超过0.30mg/dm³,但在一定水层内悬浮体含量相对较高,形成雾状层.雾状层在大洋内广泛分布,一般以表层雾状层和近底雾状层形式存在.大洋水体中悬浮体颗粒物来源广泛.表层雾状层的形成主要受透光层内生物作用的影响,而底质沉积物的再悬浮是影响底部雾状层形成的重要因素.因受水体物理海洋环境和物质来源的影响,不同区域水体中悬浮体含量不同,雾状层的分布不同.海山顶部受水流及岩石基底影响雾状层分布不明显,海山底部与开辟区洋盆海域雾状层更普遍.开辟区东西区由于物源差异水体中悬浮体含量差别明显,靠近火山喷口的西区水体中悬浮体含量明显高于东区的.
- 悬浮体含量 /
- 大洋雾状层 /
- 太平洋 /
- 物质来源
Abstract: Data of water depth,temperature,salinity and suspended particles samples at 12 stations in the Pacific Ocean were collected in 2005.According to the vertical distribution of suspended particles concentration,the distributing characteristics of marine nepheloid layers are primarily analyzed and compared in different marine conditions,and origins of these particulate matter are discussed.The concentration of suspended particles in an ocean water volume is very low,generally less than 0.3 mg/dm³.While in some layers the concent ration of suspended particles is relatively high,then the nepheloid layers are formed.In the oceans,they generally occur as surface and near-bot to mnepheloid layers everywhere.The formation of surface nepheloid layers is mostly influenced by euphotic biology,while the resuspension of bottom sediments plays an important role on the formation of near-bottom nepheloid layers.At the top of seamounts,there are no nepheloid layers because of for mation influence of water current and rock base,while the nepheloid layers occur more frequently at the bottom and the China Pioneer Area.In the western China Pioneer Area near volcanicorifices,the concent ration of suspended particles is higher than that in the eastern.
- suspended particles /
- marine nepheloid layers /
- Pacific Ocean /
- source

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参考文献(38)

BISCAYE P E,EITTREIM S L.Suspended particulate loads and transports in the nepheloid of the abyssal Atlantic Ocean[J].Marine Geology,1977,23:155-172.

THOMSEN L,van WEERING T,GUST G.Processes in the benthic boundary layer at the Iberian continental margin and their implication for carbon mineralization[J].Progress in Oceanography,2002,52:315-329.

BAUER J E,DRUFFEL E R M.Ocean margins as a significant source of organic matter to the deep sea[J].Nature,1998,392:482-485.

TJEERD C E van Weeringa,De STIGTERA Henko C,BALZERB W,et al.Benthic dynamics and carbon fluxes on the NW European continental margin[J].Deep-Sea Research (Ⅱ),2001,48:3 191-3 221.

ALLER R C.Mobile deltaic and continental shelf muds as suboxic,fluidized bed reactors[J].Marine Chemistry,1998,61:143-155.

SHARMA R.Indian Deep-sea ENVIRONMENT experiment (INDEX):an appraisal[J].Deep-Sea Research (Ⅱ),2001,48:3 295-3 307.

MCKEE B A,ALLER R A,ALLISON M A,et al.Transport and transformation of dissolved and particulate materials on continental margins influenced by major rivers:benthic boundary layer and seabed processes[J].Continental Shelf Research,2004,24:899-926.

BAKER E T,LAVELLE J W,FEELY R A,et al.Episodic venting of hydrothermal fluids from the Juan de Fuca Ridge[J].Journal of Geophysical Research,1989,94:9 237-9 250.

LAMPITT R S,NEWTON P P,JICKELLS T D,et al.Near-bottom particle flux in the abyssal northeast Atlantic[J].Deep-Sea Research(Ⅱ),2000,47:2 051-2 071.

LAMPITT R S.Evidence for the seasonal deposition of detritus to the deep-sea floor and its subsequent resuspension[J].Deep-Sea Research,1985,32:885-897.

WALSH I,FISCHER K D,DYMOND J.Evidence for resuspension of rebound particles,from near bottom sediment traps[J].DeepSea Research,1988,35:59-70.

TURNEWITSCH R,SPRINGER B M.Do bottom mixed layers influence 234Th dynamics in the abyssal near-bottom water column?[J].Deep-Sea Research (Ⅰ),2001,48:1 279-1 307.

BACON M P,RUTGERS van der,LOEFF M M.Removal of thorium-234 by scanvenging in the bottom nepheloid layer of the ocean[J].Earth and Planetary Science Letters,1989,92:157-164.

WALSH J P,NITTROUER C A.Observations of sediment flux to the Eel continental slope,northern California[J].Marine Geology,1999,154:55-68.

THORKILDSEN F,PETER M H.Modeling of deep-water renewal through cold convective plumes[J].Deep-Sea Research(Ⅱ),1999,46:1 357-1 383.

杨作升,郭志刚,王兆祥,等.黄东海及其毗邻海域悬浮体与水团的对应关系及其影响因素[J].青岛海洋大学学报,1991,25(3):55-69.

杨作升,郭志刚,王兆祥,等.黄东海陆架悬浮体向东部深海区输送的宏观格局[J].海洋学报,1992,14(2):81-90.

孙效功,方明,黄伟.黄、东海陆架区悬浮体输运的时空变化规律[J].海洋与湖沼,2000,30(6):532-539.

秦蕴珊,李凡,徐善民,等.南黄海海水中的悬浮体的研究[J].海洋与湖沼,1989,20(2):101-111.

雷坤,杨作升,郭志刚,等.东海不同底质类型海域春季悬浮体能量及影响因素[J].海洋与湖沼,2001,32(1):50-57.

郭志刚,杨作升,范德江,等.长江口泥质区的季节性沉积效应[J].地理学报,2003,58(4):591-597.

雷坤,杨作升,郭志刚,等.冲绳海槽中南部及其邻近陆架悬浮体的分布、组成和影响因子分析[J].海洋学报,2001,23(1):66-72.

郭志刚,杨作升,雷坤,等.东海陆架北部泥质区沉积动力过程的季节性变化[J].青岛海洋大学学报,1999,29(3):507-513.

郭志刚,杨作升,张东奇,等.冬、夏季东海北部悬浮体分布及海流对悬浮体输运的阻隔作用[J].海洋学报,2002,24(5):71-80.

郭志刚,杨作升,曲艳慧,等.东海陆架泥质区沉积地球化学比较研究[J].沉积学报,2000,18(2):284-289.

汪亚平,高抒,李坤业.用ADCP进行走航式悬沙浓度测量的初步研究[J].海洋与湖沼,1999,30(6):758-763.

杨作升,郭志刚,王兆祥,等.黄、东海水体中的有机包膜及其沉积作用[J].海洋与湖沼,1992,23(2):222-226.

雷坤,杨作升,郭志刚.东海陆架北部泥质区悬浮体的絮凝沉积作用[J].海洋与湖沼,2001,32(3):288-295.

ZHANG Jing,COOPER L W,WU Ying,et al.Elemental and isotopic composition of carbon and nitrogen of organic matter in plant and soils in the river bank and suspended particulate matter of the Changjiang (Yangtze River)[A].HONG Gi Hoon.ZHANG Jing.CHUNG Chang Soo.Impact of Interface Exchange on the Biogeochemical Processes of the Yellow and East China Seas[M].Seoul:Bum Shin Press,2002.189-232.

WU Ying,ZHANG Jing,LI Dao-ji,et al.Carbon and nitrogen stable isotopes of particulate organic matter at the PN section in the East China Sea[A].HONG Gi Hoon,ZHANG Jing,CHUNG Chang Soo.Impact of Interface Exchange on the Biogeochemical Processes of the Yellow and East China Seas[M].Seoul:Bum Shin Press,2002.129-146.

KATO Y,KITAZATO H,SHIMANAGA M,et al.210Pb and 137Cs in sediments from Sagami Bay,Japan:sedimentation rates and inventories[J].Progress in Oceanography,2003,57:77-95.

BOETIUS A,SPRINGER B,PETRY C.Microbial activity and particulate matter in the benthic nepheloid layer (BNL) of the deep Arabian Sea[J].Deep-Sea Research (Ⅱ),2000,47(14):2 687-2 706.

RANSOM B,SHEA K F,BURKTT P J,et al.Comparison of pelagic and nepheloid layer marine snow:implications for carbon cycling[J].Marine Geology,1998,150:39-50.

RUTGERS van der Loeff M M,MEYER R,RUDELS B.Resuspension and particle transport in the benthic nepheloid layer in and near Fram Strait in relation to faunal abundances and 234Th depletion[J].Deep-Sea Research(Ⅰ),2002,49 (11):1 941-1 958.

BOETIUS A,SPRINGER B,PETRY C.Microbial activity and particulate matter in the benthic nepheloid layer (BNL) of the deep Arabian Sea[J].Deep-Sea Research (Ⅱ),2000,47(14):2 687-2 706.

WAINRIGHT S C.Stimulation of heterotrophic microplankton production by resuspended marine sediments[J].Science,1937,238:1710-1 712.

金翔龙.东太平洋多金属结核矿带海洋地质与矿床特征[M].北京:海洋出版社,1997.84-107.

CACCHIONE D A,PRATSON L F,OGSTON A S.The shaping of continental slopes by internal tides[J].Science,2002,296:724-727.

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